Home / 987,377.36-1,480,068.92-388,758.64

Finding the Fourth Proportional to 987,377.36, 1,480,068.92 and 388,758.64

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Solution

The fourth proportional to 987,377.36, 1,480,068.92 and 388,758.64 is: 582,745.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,377.36 : 1,480,068.92 = 388,758.64 : x
  2. Step 2: Convert to fraction form
    987,377.36/1,480,068.92 = 388,758.64/x
  3. Step 3: Cross multiply
    987,377.36x = 1,480,068.92 × 388,758.64
  4. Step 4: Simplify right side
    987,377.36x = 575,389,580,445.47
  5. Step 5: Solve for x
    x = 575,389,580,445.47/987,377.36
  6. Step 6: Final answer
    x = 582,745.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.